High-elasticity silica gel foaming sealing ring

Abstract

The utility model relates to the field of sealing rings, in particular to a high-elasticity silica gel foaming sealing ring, which solves the problem that the actual sealing effect of a sealing ring which is sealed by only depending on a single contact surface of the top surface is insufficient, and comprises an upper ring layer and a lower ring layer clamped at the bottom of the upper ring layer, a bone ring structure used for improving the structural strength is filled between the upper ring layer and the lower ring layer, the upper ring layer comprises an upper silica gel ring attached to the top of the lower ring layer, an annular cavity groove is formed in the top of the upper silica gel ring, an elastic layer is installed at the top of the annular cavity groove, and the thickness of the elastic layer is smaller than the depth of the annular cavity groove. And two sealing clamping rings which are concentrically arranged are mounted at the top of the elastic layer. The actual sealing effect of the sealing ring can be effectively guaranteed, meanwhile, by means of the bone ring structure, the overall structural strength is effectively improved, and it is guaranteed that the sealing ring is not prone to deformation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing ring, specifically is a high elasticity silica gel foaming sealing ring. BACKGROUND

[0002] The silica gel foaming sealing ring is a kind of sealing material with elasticity and sealing performance, is widely used in the occasion needing waterproof, dustproof, heat insulation and sound insulation.It is manufactured by silica gel foaming technology, can expand under low pressure, form the structure with elasticity and sealing performance.And silica gel itself is resistant to high temperature (usually can resist 200 DEG C above) and low temperature (can resist-60 DEG C below), therefore is widely used in the sealing demand under extreme environment.Under normal circumstances, silica gel foaming sealing ring is arranged in annular body, when it contacts with object, mostly only top surface contacts with the bonding surface of object, this sealing property only relies on the single contact surface of sealing ring to complete sealing, possibly cannot effectively respond to multidirectional pressure variation, to affect actual sealing effect. SUMMARY

[0003] In view of the deficiency of prior art, the utility model aims at providing a kind of high elasticity silica gel foaming sealing ring to solve the problem of insufficient actual sealing effect of sealing ring that only relies on single contact surface of top surface to complete sealing in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of high elasticity silica gel foaming sealing ring, including upper ring layer, the bottom of the upper ring layer is connected with lower ring layer, and bone ring structure for increasing structural strength is filled between upper ring layer and lower ring layer;

[0005] The upper ring layer includes upper silica gel ring that is attached to the top of lower ring layer, annular cavity groove is set in the top of upper silica gel ring, and elastic layer is installed in the top of annular cavity groove, and the thickness of elastic layer is less than the depth of annular cavity groove, two sealing clamps rings that are concentrically arranged are installed in the top of elastic layer.

[0006] As preferred, at least two annular protruding strips that are arranged in upper and lower are installed on the opposite side outer wall of the two sealing clamps rings, and the thickness of annular protruding strip gradually decreases from top to bottom.

[0007] As preferred, the lower ring layer includes lower silica gel ring that is consistent with the shape of upper silica gel ring, recess for embedding bone ring structure is set in the top of lower silica gel ring and the bottom of upper silica gel ring.

[0008] As preferred, at least five clamping grooves are set in the outer surface of the lower silica gel ring, and a plurality of inner and outer concentrically arranged protruding rings are installed in the bottom of lower silica gel ring.

[0009] The bottom of the upper silica gel ring is installed with the butt joint assembly consistent with the number of clamping grooves.

[0010] As preferred, the butt joint assembly comprises an arc-shaped silica gel block installed at the bottom of the upper silica gel ring, and a plug-in structure is connected to the arc-shaped silica gel block near the center of the upper silica gel ring, and the plug-in structure is made of any one of rigid silica gel and steel material.

[0011] The plug-in structure comprises a conical head, a cylinder connected between the conical head and the arc-shaped silica gel block, and an expansion ring sleeved on the surface of the cylinder.

[0012] As preferred, the bone ring structure comprises a support ring embedded in the groove between the upper silica gel ring and the lower silica gel ring, and a plurality of limiting blocks are installed on the outer wall of the support ring.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a sealing ring, which comprises an upper ring layer and a lower ring layer, wherein the upper ring layer comprises an upper silica gel ring, a ring-shaped cavity groove is formed in the upper silica gel ring, an elastic layer is arranged in the ring-shaped cavity groove, and a sealing clamp ring is arranged on the elastic layer.

[0015] 2. The utility model discloses a sealing ring, which comprises an upper ring layer and a lower ring layer, wherein the upper ring layer comprises an upper silica gel ring, a ring-shaped cavity groove is formed in the upper silica gel ring, an elastic layer is arranged in the ring-shaped cavity groove, and a sealing clamp ring is arranged on the elastic layer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a sectional structure schematic view of the upper ring layer of the utility model;

[0018] Fig. 3 It is a sectional structure schematic view of the lower ring layer of the utility model.

[0019] In the drawing: 1, upper ring layer; 101, upper silica gel ring; 102, ring-shaped cavity groove; 103, elastic layer; 104, sealing clamp ring; 1041, annular protruding strip; 105, butt joint assembly; 1051, arc-shaped silica gel block; 1052, plug-in structure; 2, lower ring layer; 201, lower silica gel ring; 202, groove; 203, clamping groove; 204, protruding ring; 3, bone ring structure; 301, support ring; 302, limiting block. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of protection of the utility model.

[0021] In order to solve the problem of insufficient actual sealing effect of the sealing ring which only relies on the single contact surface of the top surface to complete sealing, please refer to Figs. 1-3 The utility model proposes a high elasticity silica gel foaming sealing ring which can effectively improve the sealing effect. The sealing ring specifically consists of the upper ring layer 1 and the lower ring layer 2 which is clamped at the bottom of the upper ring layer 1, and on this basis, the bone ring structure 3 is additionally filled between the upper ring layer 1 and the lower ring layer 2 to increase the overall structural strength, so that the overall structure of the sealing ring is more hard and not easy to deform.

[0022] Specifically, the upper ring layer 1 includes the upper silica gel ring 101 which is attached to the top of the lower ring layer 2, and the annular cavity groove 102 is opened at the top of the upper silica gel ring 101, the elastic layer 103 is installed at the top of the annular cavity groove 102, and the thickness of the elastic layer 103 is less than the depth of the annular cavity groove 102, and the two sealing clamp rings 104 which are arranged concentrically are installed at the top of the elastic layer 103. When the sealing ring is actually used, after the upper ring layer 1 and the lower ring layer 2 wrap the bone ring structure 3 and are clamped to form a complete sealing ring, the protruding port of the object is inserted along the inner and outer two sealing clamp rings 104, contacts and extrudes the elastic layer 103, and when the elastic layer 103 is extruded into the annular cavity groove 102, the top surface of the elastic layer 103 itself appears slight deformation, which changes from the nearly horizontal shape to the downward concave shape, and after the shape changes, the distance between the bottoms of the two sealing clamp rings 104 which are originally arranged vertically gradually decreases to the distance between the tops, so that the side surface of the top of the two sealing clamp rings 104 relative to one side is tightly attached to the inner and outer of the protruding port of the object, so as to effectively ensure the actual sealing effect of the sealing ring.

[0023] In addition, in order to further improve the sealing effect, as shown in Fig. 2 The opposite side outer wall of the two sealing clamp rings 104 is provided with at least two annular protruding strips 1041 which are arranged vertically, and the thickness of the annular protruding strips 1041 gradually decreases from top to bottom, so as to increase the tightness and area of the sealing clamp ring 104 which is arranged in an inclined section and attached to the surface of the protruding port of the object, thereby further improving the sealing effect.

[0024] As shown in Figs. 1-3As shown, the lower ring layer 2 comprises a lower silica ring 201 consistent with the shape of the upper silica ring 101, recesses 202 are formed on the top of the lower silica ring 201 and the bottom of the upper silica ring 101 for fitting the bone ring structure 3, the bone ring structure 3 comprises a support ring 301 embedded in the recess 202 between the upper silica ring 101 and the lower silica ring 201, and a plurality of limiting blocks 302 are installed on the outer wall of the support ring 301. The support ring 301 and the limiting block 302 are preferably made of steel material to ensure the strength of the structure, and in actual production, the bone ring structure 3 can be integrally formed with the lower ring layer 2, thereby reducing production cost and being more conducive to large-scale production of the sealing ring. And after that, the upper ring layer 1 is correspondingly clamped in the bone ring structure 3 by fitting along the shape of the recess 202 on the bottom of the upper ring layer 1.

[0025] As shown in the drawings, Figs. 2-3 As shown, at least five clamping grooves 203 are formed on the outer surface of the lower silica ring 201, a plurality of convex rings 204 are installed on the bottom of the lower silica ring 201, and the bottom of the upper silica ring 101 is provided with a plurality of butt joint assemblies 105 consistent in number with the clamping grooves 203, the butt joint assembly 105 comprises an arc-shaped silica block 1051 installed on the bottom of the upper silica ring 101, and a plug-in structure 1052 is connected to one side of the arc-shaped silica block 1051 close to the center of the upper silica ring 101, and the plug-in structure 1052 is made of any one of hard silica and steel material. As described above, after the upper ring layer 1 and the lower ring layer 2 are stacked and combined, the arc-shaped silica block 1051 is adjusted to align with the clamping groove 203 at the designated position, and then the arc-shaped silica block 1051 is subjected to extrusion force, and the plug-in structure 1052 is inserted into the inside of the clamping groove 203, thereby firmly combining the upper ring layer 1 and the lower ring layer 2, and the plug-in structure 1052 is composed of a tapered head, a cylinder connected between the tapered head and the arc-shaped silica block 1051, and an expansion ring sleeved on the surface of the cylinder, so that the plug-in structure 1052 is not easy to be separated from the clamping groove 203 without external pulling force after being inserted into the clamping groove 203, thereby ensuring the stability of the combination between the upper ring layer 1 and the lower ring layer 2.

[0026] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A highly elastic silicone foam sealing ring, comprising an upper ring layer (1), characterized in that: The bottom of the upper ring (1) is snapped with the lower ring (2), and a bone ring structure (3) for increasing structural strength is filled between the upper ring (1) and the lower ring (2). The upper ring (1) includes an upper silicone ring (101) that is attached to the top of the lower ring (2). An annular groove (102) is provided on the top of the upper silicone ring (101). An elastic layer (103) is installed on the top of the annular groove (102), and the thickness of the elastic layer (103) is less than the depth of the annular groove (102). Two concentrically arranged sealing rings (104) are installed on the top of the elastic layer (103).

2. The high-elasticity silicone foam sealing ring according to claim 1, characterized in that: Each of the two sealing rings (104) has at least two annular protrusions (1041) arranged vertically on the outer wall of one side, and the thickness of the annular protrusions (1041) gradually decreases from top to bottom.

3. The high-elasticity silicone foam sealing ring according to claim 1, characterized in that: The lower ring (2) includes a lower silicone ring (201) with the same shape as the upper silicone ring (101), and grooves (202) for fitting the bone ring structure (3) are provided at the top of the lower silicone ring (201) and the bottom of the upper silicone ring (101).

4. The high-elasticity silicone foam sealing ring according to claim 3, characterized in that: The outer surface of the lower silicone ring (201) is provided with at least five snap-fit ​​grooves (203), and the bottom of the lower silicone ring (201) is provided with a number of concentrically arranged protruding rings (204). The bottom of the upper silicone ring (101) is equipped with docking components (105) in the same number as the snap-fit ​​grooves (203).

5. The high-elasticity silicone foam sealing ring according to claim 4, characterized in that: The docking assembly (105) includes an arc-shaped silicone block (1051) installed at the bottom of the upper silicone ring (101), and a plug-in structure (1052) is connected to the side of the arc-shaped silicone block (1051) near the center of the upper silicone ring (101), and the plug-in structure (1052) is made of either hard silicone or rigid material. The plug-in structure (1052) consists of a conical head, a cylinder connecting the conical head and the arc-shaped silicone block (1051), and an expansion ring sleeved on the surface of the cylinder.

6. The high-elasticity silicone foam sealing ring according to claim 1, characterized in that: The bone ring structure (3) includes a support ring (301) embedded in a groove (202) between an upper silicone ring (101) and a lower silicone ring (201), and a plurality of limiting blocks (302) are installed on the outer wall of the support ring (301).

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